Push through socket



Oct. '11, 1932. c AVERY 1,882,055

PUSH-THROUGH SOCKET Filed NOV. 2, 1928 Patented Oct. 11, 1932 CHARLES AVERY, 0F BRIDGEPORT, CONNECTICUT, ASSIGNOR T0 HARVEY HUBBELL.

INCOIRPGBATED', 0F BRIDGEPQRT.CONNECTICUT, A CORPORATION OF CONNECTICUT PUSH THROUGH SOCKET Application filed November 2, 1928. Serial No. 316,717..

This invention relates to a push through socket and switch and has for an object to provide a device of this character which is very'simple in construction and can be manufacturedv and assembled, at relatively low cost.

With the foregoing and other objects in view, the'invention consists in certain novel features of construction, combinations and arrangements ofparts as will be more fully disclosed in connection with the accompanying drawing. In this drawing Fig. 1 is a vertical longitudinal section through the shell and showing part of the internal mechanism in elevation and part in section, the switch being in the open position.

Fig. 2 is a detail section substantially on line 22 of Fig. 1.

Fig. 3 is a transverse section substantially on line 33 of Fig. 1.

Fig. 4 is a front side elevation with the shell removed and with certain parts broken away to more clearly show the construction, the switch being in the closed position.

Fig. 5 is a rear side elevation with the shell removed.

Figs. 6 and 7 are side and end elevations respectively of the movable switch element.

Fig. 8 is a perspective broken view of the yieldable support for theswitch.

The construction shown comprises a body member 10 of suitable insulating material, such as porcelain or a phenolic condensation product, provided with a transverse recess 11 opening through a side wall thereof. Mounted in this recess is the improved switch mechanism. This mechanism comprises a spring metal member 12 seated on the'bottom wall 13 of the recess and having an extension passingthrough an opening 14 in this bottom wall to provide the central lamp contact 15. A portion of this member is folded upwardly and baokwardly over the wall 13 and spaced therefrom to provide the yielding support 16. The free end of this support is forked and curved downwardly as shown at 17, at the opposite sides of the fork to provide a pivotal support for the movable switch contact 18. The stationary member 12 is preferably provided with a downwardly extending lug 19 projecting i'nto the up-- per end of a recess or opening 20 in the lower wall 13 to assist in holding the member 12 in the proper position on the wall 13. The movable contact member 18 has side walls 21 bent upwardly into substantially parallel relation and provided with trunnions 22 which seat'in the recessed portions 17 of the stationary element 12. The contact 18 may be bent intermediate its ends as shown at 23,

for a purpose which will presently be described.

Mounted to reciprocate transversely in the recess 11 is a switch operating member 24. This may be a bar of metal or other suitable material and is mounted on therear wall of the recess 11. The member 24 has an elongated slot 25 through which extends a shouldered eyelet or rivet 26, the shouldered portion 27 thereof being in the elongated slot, and has a head 28 to retain the member 24 on this eyelet. The eyeletextends through an opening in the rear wall of the recess 11 and is riveted over as shown at 29, to secure it in this wall and mountthe member 24 thereon. The upper edge of this member 24 on opposte sides of this eyelet is guided against the top walls 30 of the recess 11 as shown in Figs. 1 and 4 to maintain the member 24 in proper position and prevent its turning on the eyelet 26. The opposite ends of the member 24 project from the sides of the body member and are provided, with insulating buttons 31 and 32 for operation thereof by the thumb or finger of the operator. On its under edge this member 24 is providedwith a tapered cam lug 33. This lug in the form shown is preferably substantially V-shaped and bears on the top of the switch member 18 between the side supporting elements 21. It will be obvious that the member 24 has limited transversesliding .movement on the eyelet 26, and the cam lug 33 is so located that during this sliding movement it passes from one side to the other of the axis of the trunnions or pivots 22 of the switch member 18 while bearing on the'top surface of this member between the side members 21. The switch member 18 is held against this'cam by the spring action of the support 12 therefor which yields downwardly to permit passage of the end of the cam lug from one sideof the pivots 22 to the other. This movement of the cam lug causing it to bear against the switch member 18 first on one side of its pivotand then on the other gives this element a rocking movement on this pivot and swings its free end 34 thereof to and from engagement with the stationary contact 35 mounted in the bottom wall 13, preferably in a recess in thiswa-ll as shown. The upward movement of the swinging end 34 is limited by engagement with the under side, of themember 24. In otherwords, re-

ciprocating movements ofthe operating mem-' ber 24 cause the cam lug 33 to pass alternately from one side to the other. of the trunnions 22 for the switch member 18jwhile this mem- V her 18 is'yieldingly held against the cam element by the spring action of the member,

I 16. The top surface of the switch member i 18 which is engaged by the point of the 'cam lug 33 stands in eitherof its rest positions ber 16 due to the'fact the point of appl'ica-' ti'on of force by member 16 is reversed relative to or is shifted to the other side of the point .of cam lug 33, and as soon as this movement start'sthe angleof the top surface of switch member 18 relative to cam lug 33 changes causingit to slide around the point of cam lug 33 with a quick positive snap action for making or breaking contact with stationary contact 35. Theswitch member ment-with the stationary contact 35 with what is equivalent to a snap action giving a quick make and break. The switch member 18 is bent intermediateits ends as shown at 23, so that at either end of its swinging-move ment thetop surface thereof always bears on the point of cam lug 33 and never against the sloping sides thereof to limit movements of the switch member. The movements of the switch member 18 also due to resilient mounting of trunnions 22 and side thrust of cam lug 33cause its free end to slide some.- what on the surface of the contact 35 to give a certain wipingaction to maintain a clean contact between these members. ,The'sta tionarycontact 35 is mounted in position by means of an eyelet 36 passing through the 7 rear wall of the body and an extension 37 of this contact 35 which is seated in a recess 38 in the rear wall of the body; This exten sion 37 carries-a binding screw 39 for consystem. V

Spaced from the recess 38 the rear wall is provided with another recess 40 for a conducting element 41 carrying a second bind ing screw'42. This element 41 has a foot 43 secured to the body member by a screw 44 ma groove 45 in the rearwall of the body. This screw also passes through aflange 46 of a; a screw shell lamp contact 47 so thatthe screw 44 secures the binding post 41 and the screw shell 47 .to the body and at the same time formsan electrical connection between them. The front'p'ortion -of the shell 47 is secured ,to the body byan eyelet'48 passing through the flange 46 and agroove 49 in the front wall of the body. To facilitateconnection of the lead wires and to secure more room for the heads of the screws the upper ends of the elements 37 and '41 maybe inclined inwardly, as indicated in Fig. 5,, to place the bindingscrews 39 and 42 at an angle to the vertical.

After the switch mechanism" and the screw.

shell ismounted on the body they whole device is enclosed within a sheet metal shell comprising a body section 50 and the cap section 51which may be connected by any suitable detachable connection, the parts being insulated from the shell by the usual fibre lining 52. Theinsulating body 10 is also preferably provided with longitudinal ribs 53 on its opposite'side walls to extend into the longitudinal notches in the lining extending from the upper end of' the shell opposite the notches 54 and engage the inner ends of the notches in the lining to limit movement of the body into the shell. The operating buttons 31'. [and "'32 also extend through these notches to the outside of the shell where they are accessible'for manipulation in the usual manner. 18 1s, therefore, rocked to and from engage It will be apparent from the" foregoing description that this socket and switch is very simple inconstruction and comprises a very small number of par'm. The body.

member 10 isof a single piece of insulating material, and the switch mechanism, the lamp contacts and binding posts for connec-f tion to lead wires are all mounted'directly thereon, and alljtheelements are easily accessible'for assemblyor inspection;v

' Having thus set fo'rth the nature of my invention, what I claim is:

1. In a device of the character described, 1

contact to hold the pivoted contact against its said cam ina position to permit thecam'to pass from oneside of the pivot for the con- 0 a movable switch operating member, a cam lug on said operating member and engaging the switch member, said lug being arranged to pass from one side of the pivot to the other as the operating member is shifted and rock the switch member on its pivot, and a stationary switch member to be engaged by said movable switch member.

3. In a. device of the character described, an insulating body member, a resilient metal member bowed to provide two spaced portions, one of said portions being mounted on a wall of the body and having an extension providing a lamp contact, the other portion providing a yieldable support, a movable switch member pivotally mounted on said support, a movable switch operating member, a cam on said operating member engaging the switch member and mounted to pass from one side of the pivot to the other as the operating member is shifted and thus cooperate with the yieldable support to swing the switch member on its pivot, a stationary contact in position to be engaged by the movable contact, means for connecting a lead wire therewith, a second lamp contact, and means for connecting a second lead wire with the second lamp contact.

4:. In a device of the character described, an insulating body member, a switch mechanism carried by said member including a curved flat conducting member providing a yieldable resilient support, a movable switch member having spaced aligned trunnio-ns pivoted in said support, a movable switch operating member, acam carried by the operating member and engaging said movable switch member between its trunnions, and means for shifting the switch operating member to move the cam from one side of the axis of-said trunnions to the other and cooperate with the resilient action of the support to swing the contact on its pivot. j

5. In a device of the character described, an insulating body member having a transverse recess opening through a side wall a stationary contact to be engaged by said switch member, second lamp'contact, and

means for, connecting, lead wires with the stationary contactand the second lamp'congt g V Ina device of the character described,-

an insulating body member, a curved fiat conducting member providing a yieldable resilient support mounted on said member,

arm of said supportbein'g' forked and .liaving spaced trunnionreceiving recesses, a movable switch member having spaced trunnions in said. recesses to pivotally mount the sw tch member, a movable switch operating member having a cam to engage the surface of the switch member between the trunnions,

the resilient action of the support holding the switchmember against the cam and 'co- 7 operating therewith. to retain the trunnions in the recesses, and means' for shifting the operating. member to move, the cam from one'.

.side of the axis of the trunnions to the other i andcooperate with the support to swing the switch member on its trunnions.

7. In a device ofthe. character described,

supported by said conducting member and adapted to oscillate about a transverse axis,

operating means-,means. carried by the operating means coacting with sa d cir'cuitin- 'terrupting. member adapted upon a reciprocating movement of said operating means to, cause an unrestrained accelerated oscillation of said circuit interrupting member about. said axis and upon a reverse recipro-v' eating movement of said operating means tolcausea reverse unrestrained accelerated oscillation of said circuitinterrupting member. v I

v 8, In a. device. of the character described,

a switch operating member having a cam lugand mounted for reciprocating movement, a lamp contact curved back upon its self to form an integral resilient support; a movable switch contact pivotally mounted on said support and having a surface located below said pivot held against the cam by the resilient action of the support, means for shifting the switch operating member to shift the cam from one side of the pivot to the other, and a second contact toward and from which the movable contact is shifted by the action of said cam.

9. In a device of the character described,

a one piece bodym'ember'flof insulating materialhaving .a transverse recess opening through a sidewall thereof and providing spaced transverse end walls, a switch'opjerating member mountedfor transverse re- "ciprocating' movement 'on therear wall of said recess, 'amovable' switch contact operated by said member, the lower end wall f 'of the body having anopening therethrough,

a central lamp contact at the lower side of said end wall and having an extension through said openingandforming part of the switch mechanism, said movable switch contact mounted .;on said extension, and a scrtlalw shell contact secured to said lower end wa s a v v V y ,10. In a-devicje of the character described,

a one piece'body member of insulating material having a transverse recess opening througha side wall thereof and providing spaced transverse end walls, a switch operating member mounted for transverse recip- T rocating movement in said recess, a movable V switch contact operated by said member, said I lower end wall having an opening there- 3 through, a central lamp contact below said wall'and mounted in saidopening, said lower 7 wall having longitudinal recesses opening laterally through opposite sidewalls thereof, a screw shell contact at thelower side of 7 said end wall, and means in said recesses'for securing the screw shellto said end wall.

11. In a device of the character described,

a one piece body member ofinsulating material having a transverse recess opening through a side wall thereof and providing spaced transverse end walls, switch mechanism mounted in said recess, the lower end wall having an opening therein and longi V t-udinal recesses opening laterally throughits i 5 side walls, a central lamp contact below the lower end wall and extending through. said opening to the switch mechanism, a screw' shell contact at the lower side of the end wall, means in the recesses for securing the screw shell to said'wall, bindingposts mounted on the side wallopposite'the first recess,

an electrical connection from one of the hind ing posts tothe switch mechanism, and an electrical connection from the other binding post to one of the securing means for the screw shell. 'j v In testimony whereofI aflix my signature.

1 c 7 CHARLES E. AVERY." 

